/Engine/Plugins/Runtime/MeshModelingToolset/Source/ModelingComponentsEditorOnly/Public/ToolTargets/StaticMeshComponentToolTarget.h
TODO: We may decide that we want some functions to query whether the object allows one or the other, or we may break this out into a separate interface. We'll wait to see when this actually becomes necessary to see the most convenient way to go at that point.
true if successful
virtual bool CommitMaterialSetUpdate ( const [FComponentMaterialSet](API\Runtime\InteractiveToolsFramework\TargetInterfaces\FComponentMaterialSet) & MaterialSet, bool bApplyToAsset )